Tool for opening antenna stand-offs



April 28, 1959 A. M. GLASHAW TOOL FOR OPENING ANTENNA STAND-OFFS Filed Jan. 29, 1957 2,883,896 TOOL FOR OPENING ANTENNA STAND-OFFS Alfred M. Glashaw, deceased, late of Flint, Mich by: Florence A. Marshall, administratrix, Flint, Mich.

Application January 29, 1957, Serial No. 636,919

4 Claims. (Cl. 81-15) The present invention relates to a tool for closing and opening antenna lead-down stand-ofis, and it consists in the combinations, constructions, and arrangements of parts.herein described and claimed.

Generally, there is provided a tool for opening, closing, and tightening an insulator holder for television aerial lead-down wires, such insulator holders being known as stand-olfs. The device consists of a pair of elongated arms hinged together adjacent one of their ends to provide elongated handle portions and a pair of opposed ring-engaging jaws, the latter being channeled in their inner faces to provide means for substantially fully encompassing the eye or ring surrounding the insulation block which forms a part of an antenna standoff. One of the handles terminates at its free end in an inwardly directed hook while the other end terminates in an integrally formed inwardly directed channeled claw which is adapted to receive therein a substantial portion of the ring or eye referred to above. The device is such that the hook and claw at one end thereof may be utilized to quickly and easily open the eye or ring of a standoff whereby to loosen the core or block of insulating material from clamping engagement with the lead-down wire, while the opposed jaws at the opposite end of the tool may be utilized to tighten the eye or ring securely about the insulating .block and thereby close said block in tight engagement with the lead-down wire.

It is accordingly an object of the invention to provide a novel device for opening, closing, and tightening of the eye or ring of an antenna stand-ofl.

Another object of the invention is to provide a device of the character set forth which is simple in construction, inexpensive to manufacture and yet effective and etficient in use.

A further object of the invention is to provide, in a device of the character set forth, novel channeled members forming a part of the invention.

Other and further objects of the invention will become apparent from a reading of the following specification taken in conjunction with the drawing, in which:

Figure 1 is an elevational view of an embodiment of the invention showing the same in engagement with an antenna stand-01f and illustrating its use as a tightening or closing tool;

Figure 2 is an edge view of the device illustrated in Figure l,

Figure 3 is a view similar to Figure 1 but illustrating the device in use as a ring or eye-opener of an antenna stand-off;

Figure 4 is a sectional view taken along line 4--4 of Figure 1;

Figure 5 is a sectional view taken along line 5-5 of Figure 3;

Figure 6 is a sectional view similar to Figure 5, but showing only one handle and it removed from the antenna stand-off; and

Figure 7 is a cross section taken on line 7-7 of Figure 6.

Referring more particularly to the drawing, there is shown a device of the character set forth comprising a pair of elongated members generally indicated at 10 and 11 which are pivotally connected, as indicated at 12,

adjacent one of their ends to provide a pair of elon-'- gated handles 13 and 14, respectively, upon one side of the pivotal point 12 and a pair of arcuate jaws 15 and the pivotal point.

16, respectively upon the other side of The opposed concave faces of the jaws 15 and 16 are each channeled, as indicated at 17, the channels 17 being. of depths and lengths to encompass the major portions of the outer side of an eye or ring 18 of an antenna stand-oif, such stand off being provided .with a post 19 having a conventional threaded outer end 20. To complete the construction of the conventional stand-off, there is encompassed by an open eye or ring 18 a circular core or block 21 of insulating material provided with an an' nular groove 23 for the reception of the ring 18, said groove being of a depth substantially one half the cross sectional diametric of stock from theeye' or ring is con-' viewed in cross sectional area, comprises a centrally dis-.

posed web and a pair of substantially circular outer portions, such outer portions having embedded in each a wire.

The free end of the handle 13 is provided with an integrally formed inwardly directed detent 27 of channel shape in cross section, as shown at 28 in Figure 7, and having on its free end and centrally thereof a semi-circular lug-like extension 29 of a size to closely fit into the annular groove 23 of the core or block 21. The free end of the handle 14 is provided with an integrally formed inwardly directed claw 30 provided on its inner or concave face with a channel 31 similar in size to the channels 17. y

In operation, it will be apparent that when it is desired to loosen the ring 18 on the core 21 so that the lead-down antenna wire 26 extending through the opening 24 in the core may be adjusted or replaced, it is only necessary to encompass that portion of the ring 18 adjacent the post 19 in the claw 30 and at the same time move the detent 27 into contact with the free end of the ring 18, as shown in Figure 3. When in this position, the end of the ring 18 is partially within the recess or channel 28 of the detent 27 so as to prevent the end of the ring from sliding sidewise off of the detent. At the same time, the lug-like extension 29 is received in the annular groove 23 of the core 21 to prevent lateral movement of the detent relative to the stand-01f. A construction of this character also provides an abutment on the detent 27 that is in engagement with the entire surface of the end of the open ring 18. It will be ap parent that to then loosen the ring','it is only necessary to hold the tool by the handles 13 and 14 and move the same in a clockwise direction, as viewed in Figure 3, thus expanding the ring 18 sufiiciently to loosen the same on the core or block 21. When, however, it is desired to tighten the ring 18 on the core 21 and core on the antenna lead-down wire, the jaws 15 and 16 are placed over the ring 18, as shown in Figure 1, it being apparent that the channels 17 will act to encompass the major portion of such ring when the device is in this position. To tighten and close the ring 18, it is now only necessary Patented Apr. 28, 1959-- 3 to. grasp. the handles 13. and. 14 and draw them toward each. other thus causing the. jaws. 15. and 16. to likewise: move toward each other and thus close the ring 13.

While but one form of theinvention has been shown and described herein,. it. will be. readily apparent to those skilled in the art that many minor modifications may be madewithout' departing from; the: spirit of the: invention or the: scopev of the appended claims.

What is claimed is:

1. An antenna. leadrdown. stand-01f tool comprising a pair of members pivotally connected together. intermedi-v ate. their ends and forming a pair of handles on one side of their pivotal connection, an; inwardly directed detent formedon. one: end of one of said. members and extend.- ing substantially at right angles to said member, said. detent having a. recess formed. therein at. its free endv and in. its: side facing. the pivotal connection of. said members, and. an arcuate claw formedon a free end. of the other member and presenting its concaved face toward. said detent.v

2.. An. antenna lead-down stand-off tool comprising a pair of. members pivotally connected. together intermedi ate their ends. and. forming a. pair of handles on one side of their pivotal connection, an inwardly directed detent formed on one end. of one of said members and extending substantially at right angles to said member, said detent being: of a channel shape and having the recess of said. channel extending to the free end of said detent and facing the pivotal connection of said members, and an arcuate claw" formed on a free end of the other member. and. presenting its concaved face toward said. detent;

3.. An antenna lead-down stand-off tool comprising a pair of members pivotally connected. together intermediate their ends and forming a pair of handles on one side:

of their pivotal connection, an. inwardly directed. detent formed on one end of one of said membersand ex tending. substantially at right angle to said. member, 3;

lug extension of a width less than the general width of said detent formed centrally on the free end of said detent, and an arcuate claw formed on a free end of the other member and presenting its concaved face toward said detent.

4. An antenna lead-down. stand-off tool comprising a pair of. members pivotally connected together. adjacent one of their ends and forming a pair of handles atone side of said pivotal connection, an. inwardly directed detent formed on. the free end of one of'said handles" and extending substantially atright angles to said. handle,,said detent being of a channel shape and having the recess of said channel facing. the: pivotal connection of said members and extending from the free end of the said detent towards the handle on which said detent is formed, a semi-circular lug formed centrally on the free end of said detent and of a width substantially eqnalto the width of the recess of the channel, and an arcuate claw formed; on the. free end of the other handle and presenting. its

concaved face toward said detent, said arcuate claw having a channel extending longitudinallyin its" concaved face.

References Cited in the file of this patent.

UNITED STATES PATENTS 651,896 Stoolfire June 19,, I900 1,087,565 Anderson Feb. 17;, 1914 1,106,439 Conne Aug. 11,, 19 14" 1,927,618 Spangler Sept. 19'... 1 93 3 FOREIGN PATENTS 16,854 Great Britain Aug 19;. H05 

